<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">一彩后台管理系统</h3>
      <div v-if="isNormalLogin">
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            type="text"
            size="large"
            auto-complete="off"
            placeholder="账号"
          >
            <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
          </el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            type="password"
            size="large"
            auto-complete="off"
            placeholder="密码"
            @keyup.enter="handleLogin"
          >
            <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
          </el-input>
        </el-form-item>
        <el-form-item prop="code" v-if="captchaOnOff">
          <el-input
            v-model="loginForm.code"
            size="large"
            auto-complete="off"
            placeholder="验证码"
            style="width: 63%"
            @keyup.enter="handleLogin"
          >
            <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
          </el-input>
          <div class="login-code">
            <img :src="codeUrl" @click="getCode" class="login-code-img"/>
          </div>
        </el-form-item>
        <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
      </div>

      <el-form-item prop="mobile" v-if="isSmsLogin">
        <el-input v-model="loginForm.mobile" type="text" auto-complete="off" placeholder="手机号">
          <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
        </el-input>
      </el-form-item>
      <el-form-item prop="smsCode" v-if="isSmsLogin">
        <el-input
                v-model="loginForm.smsCode"
                auto-complete="off"
                placeholder="验证码"
                style="width: 63%"
                @keyup.enter.native="handleLogin"
        >
          <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
        </el-input>
        <div class="login-code">
          <el-button round @click.native.prevent="handleSmsCode">{{computeTime>0 ? `(${computeTime}s)已发送` : '获取验证码'}}</el-button>
        </div>
      </el-form-item>


      <div class="sms-login">
        <el-button
                size="mini"
                type="text"
                @click.native.prevent="loginMethod"
        >
          <span v-if="isSmsLogin">账号密码登录</span>
          <span v-else>短信登录</span>
        </el-button>
      </div>

      <el-form-item style="width:100%;">
        <el-button
          :loading="loading"
          size="large"
          type="primary"
          style="width:100%;"
          @click.prevent="handleLogin"
        >
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right;" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
    <!--  底部  -->
    <div class="el-login-footer">
      <span>Copyright © 2018-2022 福建省一彩信息科技有限公司 All Rights Reserved.</span>
    </div>
  </div>
</template>

<script setup>
import { getCodeImg , getSmsCode } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";

const store = useStore();
const router = useRouter();
const { proxy } = getCurrentInstance();

const loginForm = ref({
  username: "",
  password: "",
  rememberMe: false,
  code: "",
  uuid: "",
  mobile: "",
  smsCode: ""
});

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }],
  mobile: [{ required: true, trigger: "change", message: "请输入手机号" }]
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaOnOff = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref(undefined);
//普通登录
const isNormalLogin = ref(true);
//短信登录
const isSmsLogin = ref(false);
const computeTime = ref(0);

function handleLogin() {
  proxy.$refs.loginRef.validate(valid => {
    if (valid) {
      if(isSmsLogin.value){
        loading.value = true;
        // if (this.loginForm.rememberMe) {
        //   Cookies.set("mobile", this.loginForm.mobile, { expires: 30 });
        //   Cookies.set('rememberMe', this.loginForm.rememberMe, { expires: 30 });
        // } else {
        //   Cookies.remove("mobile");
        //   Cookies.remove('rememberMe');
        // }
        store.dispatch("SmsLogin", loginForm.value).then(() => {
          router.push({ path: redirect.value || "/" }).catch(()=>{});
        }).catch(() => {
          loading.value = false;
        });
      } else {
        loading.value = true;
        // 勾选了需要记住密码设置在cookie中设置记住用户明和名命
        if (loginForm.value.rememberMe) {
          Cookies.set("username", loginForm.value.username, { expires: 30 });
          Cookies.set("password", encrypt(loginForm.value.password), { expires: 30 });
          Cookies.set("rememberMe", loginForm.value.rememberMe, { expires: 30 });
        } else {
          // 否则移除
          Cookies.remove("username");
          Cookies.remove("password");
          Cookies.remove("rememberMe");
        }
        // 调用action的登录方法
        store.dispatch("Login", loginForm.value).then(() => {
          router.push({ path: redirect.value || "/" });
        }).catch(() => {
          loading.value = false;
          // 重新获取验证码
          if (captchaOnOff.value) {
            getCode();
          }
        });
      }
      }
  });
}



function getCode() {
  getCodeImg().then(res => {
    captchaOnOff.value = res.captchaOnOff === undefined ? true : res.captchaOnOff;
    if (captchaOnOff.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function loginMethod() {
  isSmsLogin.value = !isSmsLogin.value;
  isNormalLogin.value = !isNormalLogin.value;
}

function handleSmsCode() {
  if (!computeTime.value) {
    proxy.$refs.loginRef.validate(valid => {
      if (valid) {
        let params = {
          mobile : loginForm.value.mobile
        }
        getSmsCode(params).then(res =>{
          if(res.code === 200){
            proxy.$modal.msgSuccess("验证码发送成功");
            loginForm.value.uuid = res.uuid;
            computeTime.value = 60;
            let timer = setInterval(() => {
              computeTime.value--;
              if (computeTime.value <= 0) {
                clearInterval(timer)
              }
            }, 1000);
          }

        })
      }
    })
  }

}

function getCookie() {
  const username = Cookies.get("username");
  const password = Cookies.get("password");
  const rememberMe = Cookies.get("rememberMe");
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
  };
}

getCode();
getCookie();
</script>

<style lang='scss' scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>